[mgerdts]

Aside from the hilly areas of San Francisco, it is quite flat too. Whenever I've visited SF my primary mode of transit is walking. Except for the time I stayed in a hotel at the top of Nob Hill, I was generally walking on land that is flatter than that found in my neighborhood and the older parts of the UW Madison campus.

From what I recall of Columbus, it is every bit as flat as you say. I'd have a hard time telling you about a hill in Chicago. Then again, I'd have a hard time telling you about a time that I was on something other than an 6+ lane highway in Chicago. The view you get from a major highway is often different from what you get in areas where you think of your kids having a casual bike ride.